Birds' egg detective

This chart identifies some birds' eggs.

Use the chart above to answer the following questions.

a)  How many kinds of birds' eggs can be identified using this key? __________

b)  How many of these birds lay coloured eggs? __________

c)  Write the name of the bird which lays these eggs:  

  i)  ____________________ A white egg
     
  ii) ____________________
A light blue egg
     
  iii) ____________________
A green/brown egg  speckled with red-brown

d)  Which bird lays plain brown eggs? ____________________